Stopper.



No. 897,294. PATBNTED SEPT.- 1, 1908. E. W. KOTTUSOH.

STOPPER.

APPLICATION FILED 0OT.18, 1907,

Egw vewto c W P MW M w EMIL WALDER KOTTUSOH, OF NEW YORK, N. Y.

STOPPER.

Application filed October 18, 1907.

Specification of Letters Patent.

Patented Sept. 1, 1908.

Serial No. 398,026.

To all whom it may concern:

Be it known that I, EMIL WALDER Kor- TUSCH, a subject of the German Emperor, and a resident of New York, county of New York,State of New York, have invented certain new and useful Improvements in Stoppers, of which the following is a s pecification.

The present invention pertains to stoppers for bottles, cans or like receptacles, and has for its object to provide a construction that will allow the discharge of the liquid only at certain positions of the receptacle and that can be applied to a bottle to render the latter also absolutely non-refillable.

My invention chiefly consists in the configuration and construction of the stopper and also to means for applying it to bottles and, to other receptacles, as tin cans, etc.

In order to make my invention more clear, I have illustrated the same in the accompanying drawing in which similar reference letters denote corresponding parts, and in which Figure 1 is a longitudinal section through the bottle, the lower part of which is broken away; Fig. 2 is an elevation of the stopper; Fig. 3 is a similar section as Fig. 1, the bottle being shown in inclined position in which the stopper is open; Figs. 4 and 5 are vertical sections of the stopper slightly modified to be applicable to tin cans, the same being shown in two different positions.

The improved stopper consists of a hollow body comprising a lower portion a forming a casing for a valve body I) the seat of which is at c, and an upper enlarged portion (Z forming a chamber to receive a ball 6. The mouth f of the chamber is perforated at g, and is adapted to receive and hold a piece it which serves to permanently close the mouth of the chamber after the insertion of the valve body and ball. The bottom of the piece h is provided with a downwardly extending projection "L which is provided with a conical cavity The body of the stopper and all its parts are of glass and the ball is made sufficiently heavy so that, when resting upon the valve, it will keep the latter tightly on its seat 0. The chamber (1 affords sufficient play to the ball, so that the latter will be allowed, on tilting the body, to roll upon the surface of the valve and press the latter uniformly unto its seat. After the insertion of the piece it the same can be permanently secured in the mouth piece f by a pin or pins 7c passed,

through these parts. The lower edge I of the projection i will, when the stopper is tilted, serve as a stop securing the ball upon the surface of the valve. When the tilting has passed the horizontal position, the ball will roll into the conical cavity permitting the valve to open (Fig. 3).

To apply the stopper to a bottle in order to render it non-refillable, I make the outer surface of the part I) of the stopper slightly cojnical as at m, the flare extending only up to the perforations g and I provide in the circumference of the valve casing an annular groove n in which a rubber ring 0 is tightly fitted. The mouth p in the neck (1 of the bottle is slightly of a larger diameter than the largest width of the stopper to allow of the passage of the latter into the bottle. The gorge 1' is in conformity with the conical portion of the stopper also conically shaped, so that the stopper, when inserted into the neck, will tightly fit therein, the upper end of said stopper, from the lower edges of the perforations g, projecting into the mouth p. As the projection i of the piece h is of smaller diameter than the inner diameter of the chamber d, an annular passage 3 is formed, permitting the admission of air through the perforation g at one side and the discharge, of the liquid at the other side (Fig. 3). Opposite the ring 0 a groove 25 is formed in the gorge 1 which,

uponthe insertion of the stopper into the bottle, will engage the outer surface of the ring and permanently lock the stopper in position. Above the upper end of the stopper the mouth of the neck may be closed by an ordinary cork (not shown) in the usual manher.

It will be seen that from the outside no access can be had to the inner parts of the stopper, and thus a refilling of the bottle by forcibly opening the valve is entirely impossible. On the other hand, to fill the bottle by pressure or by vacuum is also excluded, since the valve will thereby be forced unto its seat. The stopper can advantageously be also applied to tin cans containing combustible liquids as parafiin, benzol or the like, to prevent explosions when the receptacle drops down. As the stopper will automatically close the receptacle when in hori zontal position, the liquid will not be allowed to flow out as soon as the receptacle has adopted that position. To secure the stopper to a tin can the lower part thereof may be provided with screw thread it to fit in the I threaded neck or mouth 12 of the can to (Figs.

4 and 5).

What I claim and desire to secure by Letters Patent is 1. A stopper for liquid receptacles, comprising an integral hollow body which is open at both ends, a valve working in the lower portion, a ball contained in the upper por tion of said body and. adapted to act by its weight on said valve, the said body having perforations at its mouth portion, a piece se cured in and closing said mouth, a projection at the bottom of said piece, said projection having a conical cavity to serve as a guide for said ball, and forming an annular passage between itself'and the upper portion containing the ball, substantially as set forth.

2. A stopper for liquid receptacles, comprising an integral hollow body which is open at both ends, a valve working in the lower portion, a ball contained in the upper portion of said body and adapted to act by its weight on said valve, the said body having perforations at its mouth portion, a piece secured in and closing said mouth, a projection at the bottom of said piece, said projection having a conical cavity to serve as a guide for said ball, and forming an annular passage be tween itself and the upper portion containing the ball, and means'for securing said stopper in the liquid receptacle, substantially as set forth.

3. In a bottle, a neck having an inner annular groove and a stopper permanently fitted therein, said stopper comprising a hollow body which is open at both ends, a valve working in the lower portion, a ball in the upper portion of said body, and adapted to act by its weight on said valve, the said body having perforations on the circumference at its mouth portion, a piece secured in and closing the said mouth, a projection at the bottom of said piece having a conical cavity to serve as a guide for the ball, and forming an annular passage between itself and the upper portion containing the ball, the lower portion of the said body being formed with an annular groove, a rubber ring tightly fitted in said groove, and engaging in the neck of the bottle, substantially as set forth.

Signed at New York this 17 day of October, 19 7.

E. WALDER KOTTUSCH. Witnesses ROBERT STRAHL, MAX D. ORDMANN. 

